runtime: device: move to top level package

Let's move device package to runtime/pkg instead of being buried under
virtcontainers.

Signed-off-by: Eric Ernst <eric_ernst@apple.com>

src/runtime/pkg/device/manager/utils.go

@@ -0,0 +1,47 @@
+// Copyright (c) 2017-2018 Intel Corporation
+// Copyright (c) 2018 Huawei Corporation
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package manager
+
+import (
+	"path/filepath"
+	"strings"
+
+	"github.com/kata-containers/kata-containers/src/runtime/pkg/device/config"
+)
+
+const (
+	vfioPath = "/dev/vfio/"
+)
+
+// isVFIO checks if the device provided is a vfio group.
+func isVFIO(hostPath string) bool {
+	// Ignore /dev/vfio/vfio character device
+	if strings.HasPrefix(hostPath, filepath.Join(vfioPath, "vfio")) {
+		return false
+	}
+
+	if strings.HasPrefix(hostPath, vfioPath) && len(hostPath) > len(vfioPath) {
+		return true
+	}
+
+	return false
+}
+
+// isBlock checks if the device is a block device.
+func isBlock(devInfo config.DeviceInfo) bool {
+	return devInfo.DevType == "b"
+}
+
+// isVhostUserBlk checks if the device is a VhostUserBlk device.
+func isVhostUserBlk(devInfo config.DeviceInfo) bool {
+	return devInfo.DevType == "b" && devInfo.Major == config.VhostUserBlkMajor
+}
+
+// isVhostUserSCSI checks if the device is a VhostUserSCSI device.
+func isVhostUserSCSI(devInfo config.DeviceInfo) bool {
+	return devInfo.DevType == "b" && devInfo.Major == config.VhostUserSCSIMajor
+}